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课件网) Brainstorming What do you know about electricity Do you know any interesting facts about electricity Interesting facts about electricity Before you listen Work in pairs and discuss the questions. After discussing, guess if the following statements are true or false. (1) Electricity is an invention. (2) Electricity can travel as fast as light. (3) We didn’t have electric cars in the past. 1 How much do you know about electricity Discuss the questions in pairs. (1) Is electricity an invention or a discovery (2) How fast does electricity travel (3) Is the electric car a new idea When was it first invented Listen for the first time While-listening Listening tips: Read the sentences before listening. Underline the words you hear. Pay attention to any new words you hear. √ √ √ Listening tips: Write down the important information. Pay attention to words like “first of all”, “another”, and “finally”. Listen for the second time While-listening smooth stone light the first electric car the second half of the 19th century billions of pounds offices Audio script Good evening. Thanks for joining me in this week’s The Natural World. I’m Rebecca. Tonight, I’ll share some interesting facts about electricity with you. First of all, as you may already know, electricity was not invented. It was discovered. But do you know when it was first discovered Many believe that electricity was first discovered by the Ancient Greeks more than 2,500 years ago. They produced electricity by rubbing fur against smooth stone! Next, do you know how fast electricity travels The answer is: the speed of light! That is, about 300 million metres per second! Another interesting fact is about electric cars. They are very popular now, but the idea is not new. British inventor Robert Anderson invented the first electric car around 1832. However, this car was not very useful. It wasn’t possible to drive electric cars until the second half of the 19th century. Finally, we are always trying our best to make good use of this energy, but according to a report, billions of pounds of electricity is wasted every single year in the UK. And another report shows that in the USA, about 30% of the electricity used in offices each year is wasted. This just shows how important it is to save electricity in our daily lives. That’s all from me today. I hope you enjoyed learning a bit more about electricity. Language notes 1. against /R'Genst/ prep. 紧靠；碰；撞 My cat always rubs against my legs when I come home. 2. speed /spi:d/ n. 速度；速率 Some high-speed trains can travel at a speed of 350 km/h. 3. electric car 电动汽车 Electric cars are very common nowadays. Ask and answer Example: Student A: How did the ancient Greeks produce electricity Student B: By rubbing fur against smooth stone. After you listen Work in pairs. One student makes up Wh-questions, and the other one answers them according to the text. Group discussion Di ... ...
